Mouse On Gp2x

[ak_]

Hi, i just got my GP2X (MK2, firmware 2.11) and my USB Host Cable from artaylor.co.uk (he had one retractable cable left so i took this one). I can plug my mp3 player (Cowon iAudio X5L) and it works like a charm, i can access files in the player etc.

I read that 5v / 100mA devices could be connected and use power from the gp, so i plugged my mouse and nothing happened, no light, nothing. I tried to connect a self-powered hub to the gp, then my mouse to the hub and the mouse works perfectly (under ScummVM) so the problem is obviously related to power.

So my question is : do you think there might be a difference between non-retractable cable (the one on the website) and the retractable one (thiner) ?

Richard, who sold me the cable, told me :

The only difference between the retractable and non-retractable cable is the thickness of the wires - it is possible that the thin wires can not carry enough power for the full 100mA, however I think this is unlikely.

If anyone has precisions, or already experienced similary "problem", answers would be really appreciated.

I'm thinking about trying to plug a mecanical mouse (less power-greedy i guess), what do you think ?

Thanks a lot (and merry Christmas to people who care about it).

 

[aapje89]

How many ma does your mouse use then? maybe its just too much...

I don't think that it would be the wire, 100mA isn't a lot.

 

[ak_]

My (optical) mouse is 5v / 100mA.

 

[Blah]

If the problem were that the wire wasn't thick enough, it would still work but the wire would start getting hot. I think you've got a configuration problem here.

 

[ak_]

Well, if it was a configuration problem, it wouldn't work even with the hub plugged, no ?

Moreover, i found out that my wacom tablet was 5v/40mA, so i tried to plug it in. Of course i could'nt do anything with it but at least the LED turned on.

 

[aapje89]

Maybe the actual power the gp2x can supply is like ~90mA... still kinda lame though

I have got a wacom tablet too btw.